VGTU talpykla > Aplinkos inžinerijos fakultetas / Faculty of Environmental Engineering > Moksliniai straipsniai / Research articles >

Lietuvių   English
Please use this identifier to cite or link to this item: http://dspace.vgtu.lt/handle/1/4064

Title: Insights and Findings Following 11 Years of Test Road Exploitation
Authors: Žalimienė, Laura
Vaitkus, Audrius
Čygas, Donatas
Keywords: asphalt wearing course
bearing capacity
deflection
equivalent single axle load (ESAL)
road pavement structure
rut depth
the test road
Issue Date: 2020
Publisher: MDPI
Citation: Žalimienė, L.; Vaitkus, A.; Čygas, D. Insights and Findings Following 11 Years of Test Road Exploitation. Coatings 2020, 10, 1161.
Series/Report no.: 10;12
Abstract: Road pavement is one of the most important components of road structure. Long-term monitoring changes in the state of road pavement under real conditions of load and climate allows to determine surface degradation mechanisms, select sustainable road building materials and their mixes, rationally employ asphalt paving technologies, and improve quality control. For a number of years, road pavement structures have been studied that should best meet the Lithuanian climate conditions and withstand the increasing impact of vehicle load. Thus, for that purpose, specially designed, constructed and tested roads or road sections for different pavement structures are most appropriate. One of those was constructed in 2007. The experimental road (hereinafter, the Test Road) consisted of 27 different pavement structures (PSs) produced of various materials. The study aims to evaluate the effect of different materials on variations in the bearing capacity of the pavement structure (PS), the sustainability of the structure, and the formation of ruts in 2007–2018. In this way, difference in bearing capacity, rutting depth between sections, and loaded and unloaded lanes was estimated. Further, the statistical analysis of these factors was conducted. Investigations have shown that the minimum bearing capacity of 754 MPa established after 11 years did not affect the formation of rut depth that was less than 1.0 cm. The PSs covered with the used asphalt granules, a larger asphalt base course on gravel, the sand mix base course, and granite aggregate mixed with sand base course were accepted as one of the PSs with the highest bearing capacity with PSs exceeding 929 MPa. The bearing capacity of the PS containing a 20 cm aggregate base course is on average higher by 30 MPa than PS holding a 15 cm aggregate base course.
Description: This article belongs to the Special Issue Pavement Surface Coatings
URI: http://dspace.vgtu.lt/handle/1/4064
ISSN: 2079-6412
Appears in Collections:Moksliniai straipsniai / Research articles

Files in This Item:

File Description SizeFormat
Insights and Findings Following 11 Years of Test Road Exploitation.pdf3.96 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback